Strut for brake-beams.



W. H. HARRISON.

STRUT POR BRAKE BEAMS.

APPLIOATION FILED No.1, 1911.

1,070,804, Patented Aug. 19, 1913.

F/Q- 2- F153.

UNITED STATES PATENT OFFICE.

WILLIAM H. HARRISON, OF DETROIT, MICHIGAN, ASSIGNOR TO CHICAGO RAILWAY EQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, A yCOlitl?(IEM-I'JION OF ILLINOIS.

sTRU'r ron BRAKE-Balans.

Specification Vof Letters Patent. i

Patented Aug. 19,1913.

Application filed December 1, 1911. Serial N 0. 663,452.

To all whom t may concern Be it known that I, WILLIAM H. HARRI- soN, a citizen of the United States, residing at Detroit, Wayne county, State of Michigan, have invented a certain new and useful Improvement in Struts for Brake-Beams, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which-n Figure l is a side elevational view of my improved st-rut for brake beams. Fig. 2 is a sectional view on line 2 2, Fig. 1. Fig. 3 is a sectional view of a modified form.

This invention relates to a new and useful improvement in struts for brake beams, the object being to construct a strut for trussed beams in which the seats for the compression and tension members may be made of malleable casting, while the shank portion of the strut may be formed of commercially rolled bars riveted to said end portions and provided with pin holes for the brake lever pins. By thus constructing a built-up strut, it is possible where any of the parts thereof are damaged in service. such parts may be replaced, and a saving of the remainder of the parts be thus effected.

In the drawings: l indicates the compression member and 2 the tension member of a well-known form of brake beam.

3 is a casting provided with a wall 3 for embracing the compression member, said compression member being clamped in position by a wedge key 5 as shown in Fig. 1.

3b indicates an inward extension formed on this end casting to which the shank bars 6 are secured, preferably by means of rivets 7.

8 is the casting at the opposite end of the strut which provides a seat for the tension member 2 and which may also have a perforated lug l0 for the attachment of the third suspension link, if desired. This casting 8 also has an inward extension 8a to which the ends of the shank bars 6 are connected by means of rivets 11. The pin holes 6a in the shank bars are preferably formed by punching the metal of commercially rolled bars, so as to form bosses 6b around said openings in a manner thatvis well known. The -pin holes 6EL are formed in the bars 6 od center or closer to one end of said bars than the other, and thus by reversing the positions of the bars or turning the same end for end the location of the pin holes is changed with respect to the tension and compression members, which arrangement is very desirable where it is vnecessary to change the position of the brake lever.

If desired, the bars may be flat, as shown in Fig. 2 or convex as shown in Fig. 3 in which latter figure bosses 6 are also formed on the inner faces of the bars.

From the above it will be seen that my improved st-rut is very simple, the several parts being capable of being replaced in making repairs.

By turning the shank bars end for end, the location of the pin hole may be varied according to requirements, thus reducing the number of parts to be carried in repair shops.

Instead' of using rivets to fasten the shank bars in position, bolts may be employed, or other fastening devices used, which will enable the ready dismantling of the strut.

What I claim is:

A strut for brake beams comprising a pair of castings adapted to engage the tension and compression members of the brake beam, the casting which engages the compression member being provided with a substantially U-shaped seat for said compression member, and with apertures at one end of said seat, which apertures are adapted to receive a key for locking said casting to the compression member, lugs integral with and projecting inwardly from said castings, a perforated lug integral with the casting which engages the tension member, which perforated lug is adapted to receive the third suspension link of the brake beam, a pair of separate and independent duplicate bars positioned between the cast-ings with the ends of said bars engaging oppositely disposed faces on the lugs, attaching means passing through the ends of the bars and the lugs, each of said bars being provided with signature in the presence of two Witnesses, a single brake lever pin hole, :incl the pair this 25th dey of November, 1911.

of holes being located nearer one end of the L hers than the other7 whereby the location of YV' H' HRRXSON' 5 the broke lever pin holes is changed when Vitnesses:

the bars are turned end for enel. A. H. MOODY,

ln testimony whereof I hereunto affix my A. W. SGHWEITZER.

Copies of 'this patent may be obtainedV for five cents each, by addressing the Commissioner of Patents,

" Washington, D. C. 

